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Autophradates (in Greek Aυτoφραδάτης; lived 4th century BC) was a Persian who distinguished himself as a general in the reign of Artaxerxes III and Darius Codomannus. During the reign of the Artaxerxes III, Autophradates captured Artabazus, the satrap of Lydia and Ionia who had revolted against Persian king, and made him his prisoner, but afterwards set him free and joined the Revolt of the Satraps.
After the death of the Persian admiral, Memnon, in 333 BC, Autophradates and Pharnabazus undertook the command of the fleet, and reduced Mytilene, the siege of which had been begun by Memnon. Pharnabazus now sailed with his prisoners to Lycia, and Autophradates attacked the other islands in the Aegean sea which supported Alexander the Great. But Pharnabazus soon after joined Autophradates again, and both sailed against Tenedos, which was induced by fear to surrender to the Persians. During these expeditions Autophradates also laid siege to the town of Atarneus in Mysia, but without success.